As with most vehicles 30-plus years old, rust is a factor. Luckily, our F73 is in pretty decent shape. It's important to note that you should heed caution when unfastening bolts that are frequently introduced to water. For example, one bolt in the subframe actually snapped in half. It was completely rusted through. Also from the image, signs of rust and rot were obvious, with bubbles in the paint on the passenger side fender. Hence our decision to replace it completely.